<?php
/**
 * Created by PhpStorm.
 * User: HuangLuSen
 * Date: 2017/5/5
 * Time: 15:29
 */

namespace app\admin\model;


use think\Model;

class AuthGroup extends Model
{
    protected $autoWriteTimestamp = 'int';
    public function getStatusTextAttr($value,$data)
    {
        $status = [1=>'<span class="label label-success">启用</span>',0=>'<span class="label label-danger">禁用'];
        return $status[$data['status']];
    }
    /**
     * 返回用户组列表
     * 默认返回正常状态的管理员用户组列表
     * @param array $where   查询条件,供where()方法使用
     *
     */
    public function getGroups($where=array()){
        $map = array('status'=>1,'type'=>1);
        $map = array_merge($map,$where);
        return $this->where($map)->select();
    }
    /**
     * 返回用户所属用户组信息
     * @param  int    $uid 用户id
     * @return array  用户所属的用户组 array(
     *                                         array('uid'=>'用户id','group_id'=>'用户组id','title'=>'用户组名称','rules'=>'用户组拥有的规则id,多个,号隔开'),
     *                                         ...)
     */
   public function getUserGroup($uid){
        static $groups = array();
        if (isset($groups[$uid]))
            return $groups[$uid];
        $prefix = config('prefix');
        $user_groups = \think\Db::name('AuthGroup')->alias('a')->field('id,g.group_id,title,description,rules,mark')->join($prefix."auth_group_access g","a.id=g.group_id")->where("g.uid='$uid' and a.status='1'")->select();
        $groups[$uid]=$user_groups?$user_groups:array();
        return $groups[$uid];
    }
    /**
     * 检查用户组是否全部存在
     * @param array|string $gid  用户组id列表
     */
    public function checkGroupId($gid){
        return $this->checkId('AuthGroup',$gid, '以下用户组id不存在:');
    }
    /**
     * 检查id是否全部存在
     * @param array|string $gid  用户组id列表
     */
    public function checkId($modelname,$mid,$msg = '以下id不存在:'){
        if(is_array($mid)){
            $count = count($mid);
            $ids   = implode(',',$mid);
        }else{
            $mid   = explode(',',$mid);
            $count = count($mid);
            $ids   = $mid;
        }
        $s = model($modelname)->where(array('id'=>array('IN',$ids)))->column('id');
        if(count($s)===$count){
            return true;
        }else{
            $diff = implode(',',array_diff($mid,$s));
            $this->error = $msg.$diff;
            return false;
        }
    }
    /**
     * 把用户添加到用户组,支持批量添加用户到用户组
     * 示例: 把uid=1的用户添加到group_id为1,2的组 `AuthGroupModel->addToGroup(1,'1,2');`
     */
    public function addToGroup($uid,$gid){
        $uid = is_array($uid)?implode(',',$uid):trim($uid,',');
        $gid = is_array($gid)?$gid:explode( ',',trim($gid,',') );
        $Access = model('AuthGroupAccess');
        if( isset($_REQUEST['batch']) ){
            //为单个用户批量添加用户组时,先删除旧数据
            $del = $Access->where( array('uid'=>array('in',$uid)) )->delete();
        }
        $uid_arr = explode(',',$uid);
        $uid_arr = array_diff($uid_arr,array(1));
        $add = array();
        if( $del!==false ){
            foreach ($uid_arr as $u){
                //判断用户id是否合法
                if(model('users')->getFieldByid($u,'id') == false){
                    $this->error = "id为{$u}的用户不存在！";
                    return false;
                }
                foreach ($gid as $g){
                    if( is_numeric($u) && is_numeric($g) ){
                        $add[] = array('group_id'=>$g,'uid'=>$u);
                    }
                }
            }
            $Access->saveAll($add);
        }
        if ($Access->getError()) {
            if( count($uid_arr)==1 && count($gid)==1 ){
                //单个添加时定制错误提示
                $this->error = "不能重复添加";
            }
            return false;
        }else{
            return true;
        }
    }
}